Flexural reinforced concrete elements normal section bearing capacity evaluation in fracture stage

This article examines flexural reinforced concrete structures condition assessment process in existing buildings on the stage where the reinforcement stress is between the yield and the tensile strength. The research is made on V. Jokūbaitis proposed methodology directly measuring the compression z...

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Main Authors: Justas Slaitas, Zbynek Hlavac, Arnoldas Šneideris
Format: Article
Language:English
Published: Vilnius Gediminas Technical University 2017-06-01
Series:Engineering Structures and Technologies
Subjects:
Online Access:https://journals.vgtu.lt/index.php/EST/article/view/603
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spelling doaj-44bef11934844911bf27387a948f72512021-07-02T11:01:07ZengVilnius Gediminas Technical UniversityEngineering Structures and Technologies2029-882X2029-88382017-06-019210.3846/2029882X.2017.1322919Flexural reinforced concrete elements normal section bearing capacity evaluation in fracture stageJustas Slaitas0Zbynek Hlavac1Arnoldas Šneideris2Vilnius Gediminas Technical University, Saulėtekio al. 11, LT-10223 Vilnius, LithuaniaResearch Centre Rez Ltd., Morseova 4 Borska pole, 301 00 Plzen, Czech RepublicVilnius Gediminas Technical University, Saulėtekio al. 11, LT-10223 Vilnius, Lithuania This article examines flexural reinforced concrete structures condition assessment process in existing buildings on the stage where the reinforcement stress is between the yield and the tensile strength. The research is made on V. Jokūbaitis proposed methodology directly measuring the compression zone height, allowing us to evaluate the behavior of reinforced concrete beam fracture sufficiently precisely. This paper confirms the hypothesis that, when reinforcement reaches yielding stress, elastic strain dominates in concrete‘s compression zone and it is reasonable to use triangular concrete compression zone diagram, without tensile concrete above crack evaluation. The methodology of reinforced concrete structures bearing capacity assessment according to limit normal section crack depth is proposed. There is established connection between bending moments, when reinforcement achieve yielding stress and tensile strength, which allows us to decide about structures bearing capacity reserve. The results are confirmed with experimental studies and calculated values obtained by methodologies based on different reduced stress diagrams of concrete‘s compressive zone. First published online: 05 Jun 2017 https://journals.vgtu.lt/index.php/EST/article/view/603reinforced concreteflexural strengthconcrete fracturecrack depth
collection DOAJ
language English
format Article
sources DOAJ
author Justas Slaitas
Zbynek Hlavac
Arnoldas Šneideris
spellingShingle Justas Slaitas
Zbynek Hlavac
Arnoldas Šneideris
Flexural reinforced concrete elements normal section bearing capacity evaluation in fracture stage
Engineering Structures and Technologies
reinforced concrete
flexural strength
concrete fracture
crack depth
author_facet Justas Slaitas
Zbynek Hlavac
Arnoldas Šneideris
author_sort Justas Slaitas
title Flexural reinforced concrete elements normal section bearing capacity evaluation in fracture stage
title_short Flexural reinforced concrete elements normal section bearing capacity evaluation in fracture stage
title_full Flexural reinforced concrete elements normal section bearing capacity evaluation in fracture stage
title_fullStr Flexural reinforced concrete elements normal section bearing capacity evaluation in fracture stage
title_full_unstemmed Flexural reinforced concrete elements normal section bearing capacity evaluation in fracture stage
title_sort flexural reinforced concrete elements normal section bearing capacity evaluation in fracture stage
publisher Vilnius Gediminas Technical University
series Engineering Structures and Technologies
issn 2029-882X
2029-8838
publishDate 2017-06-01
description This article examines flexural reinforced concrete structures condition assessment process in existing buildings on the stage where the reinforcement stress is between the yield and the tensile strength. The research is made on V. Jokūbaitis proposed methodology directly measuring the compression zone height, allowing us to evaluate the behavior of reinforced concrete beam fracture sufficiently precisely. This paper confirms the hypothesis that, when reinforcement reaches yielding stress, elastic strain dominates in concrete‘s compression zone and it is reasonable to use triangular concrete compression zone diagram, without tensile concrete above crack evaluation. The methodology of reinforced concrete structures bearing capacity assessment according to limit normal section crack depth is proposed. There is established connection between bending moments, when reinforcement achieve yielding stress and tensile strength, which allows us to decide about structures bearing capacity reserve. The results are confirmed with experimental studies and calculated values obtained by methodologies based on different reduced stress diagrams of concrete‘s compressive zone. First published online: 05 Jun 2017
topic reinforced concrete
flexural strength
concrete fracture
crack depth
url https://journals.vgtu.lt/index.php/EST/article/view/603
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AT zbynekhlavac flexuralreinforcedconcreteelementsnormalsectionbearingcapacityevaluationinfracturestage
AT arnoldassneideris flexuralreinforcedconcreteelementsnormalsectionbearingcapacityevaluationinfracturestage
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